Comprehensive Product Overview

The FortiGate 400F (FG-400F) series represents Fortinet’s mid-range enterprise NGFW solution, engineered to balance unmatched performance, robust security, and seamless integration within the Fortinet Security Fabric. Built on FortiOS 7.x, it converges networking and security into a single, compact 1U rackmount appliance, eliminating the need for multiple standalone devices.

At its core, the FG-400F leverages FortiASIC NP7 (network processor) and CP9 (content processor) hardware acceleration, offloading compute-intensive tasks like SSL/TLS inspection, IPS, and antivirus to dedicated chips—ensuring line-rate performance even under full security inspection loads. This architecture delivers up to 79.5 Gbps firewall throughput (UDP 1518-byte packets) and 9 Gbps threat protection throughput, making it suitable for high-bandwidth enterprise and data center environments.

The FG-400F supports AI/ML-powered FortiGuard subscriptions, including unified threat protection (UTP), advanced malware protection (AMP), and zero-trust network access (ZTNA), providing automated, real-time defense against evolving threats like ransomware, zero-day exploits, and advanced persistent threats (APTs). Its rich port configuration (16x GE RJ45, 8x GE SFP, 8x 10G SFP+) and dual redundant PSUs ensure flexible connectivity and 99.999% uptime for business-critical networks.

As part of the Fortinet Security Fabric, the FG-400F seamlessly integrates with FortiSwitch, FortiAP, FortiMail, and FortiAnalyzer, enabling end-to-end security visibility and centralized management across the entire network ecosystem.

Key Features & Business Benefits

1. Industry-Leading Performance with SPU Acceleration

• Features: Patented NP7/CP9 SPU hardware acceleration; 79.5 Gbps firewall throughput, 12 Gbps IPS throughput, 10 Gbps NGFW throughput.
• Business Benefit: Delivers line-rate security without performance degradation; supports high-traffic networks (up to 8M concurrent sessions) and reduces latency for latency-sensitive applications.

2. AI/ML-Driven Unified Security

• Features: Integrated FortiGuard AI/ML services (IPS, antivirus, web filtering, CASB, DLP); zero-trust network access (ZTNA); SSL/TLS inspection (up to 8 Gbps).
• Business Benefit: Automates threat detection/response; blocks zero-day exploits, ransomware, and APTs; ensures compliance with data protection regulations (GDPR, HIPAA).

3. High-Density 10G Connectivity & Flexibility

• Features: 16x GE RJ45, 8x GE SFP, 8x 10G SFP+ (4x ultra-low-latency); 2x NIM expansion slots; dedicated MGMT/HA ports.
• Business Benefit: Supports 10G fiber uplinks for data centers; flexible port mix for LAN/WAN connectivity; future-proofs network upgrades with expansion slots.

4. Carrier-Grade High Availability

• Features: Dual hot-swappable redundant PSUs (1+1 redundancy); active-active/active-passive HA clustering; TPM 2.0 for secure boot/encryption.
• Business Benefit: Ensures 99.999% uptime for business-critical networks; prevents single points of failure; enhances security with hardware-based root of trust.

5. Security-Driven Networking (SD-WAN + NGFW)

• Features: Integrated FortiGate SD-WAN; application-aware routing; IPsec/SSL VPN (55 Gbps IPsec throughput).
• Business Benefit: Unifies NGFW and SD-WAN on one device; optimizes multi-cloud/branch connectivity; reduces operational costs by eliminating separate SD-WAN hardware.

6. Simplified Management & Zero-Touch Deployment

• Features: FortiOS 7.x with intuitive GUI/CLI; FortiGate Cloud for zero-touch deployment; centralized management via FortiManager.
• Business Benefit: Reduces IT management overhead; enables remote provisioning/monitoring; lowers training costs with a single OS across all Fortinet devices.

Technical Specifications (SEO-Optimized Table)

Ideal Application Scenarios

1. Mid-to-Large Enterprise Networks: Secures headquarters, regional branches, and campus networks with 500–2,000 users; supports high-bandwidth applications (video conferencing, ERP, cloud access).
2. Data Center & Cloud Edge: Acts as a border security gateway for data centers; connects to public clouds (AWS, Azure, GCP) via IPsec/SSL VPN; protects virtualized workloads.
3. Service Provider & ISP: Delivers managed security services to enterprise customers; supports multi-tenant environments with virtual domains (VDOM); ensures high throughput for subscriber traffic.
4. Distributed Enterprise & SD-WAN: Unifies NGFW and SD-WAN for multi-branch networks; optimizes connectivity to SaaS applications (Microsoft 365, Salesforce); provides zero-trust access for remote workers.
5. Regulated Industries: Meets compliance requirements for finance, healthcare, and government (GDPR, HIPAA, PCI-DSS); provides audit trails, data loss prevention (DLP), and encrypted traffic inspection.

Supported Accessories & Modules

1. Network Interface Modules (NIM)

• FG-400F-NIM-2SFP+: 2x 10G SFP+ ports (for additional fiber connectivity)
• FG-400F-NIM-4RJ45: 4x GE RJ45 ports (for LAN expansion)
• FG-400F-NIM-2QSFP+: 2x 40G QSFP+ ports (for high-speed data center uplinks)

2. Transceivers (Compatible with SFP/SFP+ Slots)

• 1G SFP: FortiGrow SFP-GE-SX (multi-mode, 550m), SFP-GE-LX (single-mode, 10km)
• 10G SFP+: FortiGrow SFP+SR (multi-mode, 300m), SFP+LR (single-mode, 10km), SFP+ER (single-mode, 40km)

3. Power Supplies & Redundancy

• FG-400F-AC-PSU: Replacement AC power supply (hot-swappable)
• FG-400F-DC-PSU: DC power supply (48–60VDC) for telecom environments

4. Management & Security Bundles

• FortiCare Premium: 24/7 technical support, advanced hardware replacement (NBD), firmware updates
• FortiGuard UTP Bundle: IPS, antivirus, web filtering, application control
• FortiGuard Enterprise Protection: UTP + AMP, CASB, DLP, ZTNA

Frequently Asked Questions (FAQ)

Q1: What is the difference between FG-400F and FG-401F?

A: The FG-401F includes 2x 480GB SSDs for local storage (logs, reports, sandboxing), while the FG-400F has no onboard storage. Both share identical performance and port configurations.

Q2: Can the FG-400F be deployed in a high-availability (HA) cluster?

A: Yes. The FG-400F supports active-active and active-passive HA clustering (up to 4 nodes) for redundancy and load balancing. It also includes a dedicated HA port for cluster communication.

Q3: Does the FG-400F support zero-trust network access (ZTNA)?

A: Yes. The FG-400F integrates FortiGate ZTNA (formerly FortiSASE ZTNA) to provide secure, granular access to applications for remote and on-premises users—without exposing the network.

Q4: What is the maximum number of concurrent SSL VPN users supported?

A: The FG-400F supports up to 5,000 concurrent SSL VPN users (tunnel mode) with a recommended maximum of 2,000 for optimal performance.

Q5: Is the FG-400F compatible with FortiManager for centralized management?

A: Yes. The FG-400F is fully compatible with FortiManager (on-premises or cloud) for centralized configuration, policy management, and reporting across all FortiGate devices.

Q6: What is the typical power consumption of the FG-400F?

A: The FG-400F consumes 154.8W (average) and 189.2W (maximum) with dual AC power supplies. It is 80Plus compliant for energy efficiency.